I use amanda to backup my clients data with defaults tapecycle 10 and dumpcycle 7 and cronjob running amdump every night.
Now I have a client that requires 15min recovery guarantee... that is in event of disaster I must be able to recover all data to a stable state loosing at most 15 minutes of data. For this I need amanda to make backups every 15 minutes. My guess from reading the documentation is that I need to set the runspercycle to 675 (= 60min x 24 hours x 7 dumpcycle / 15 min intervals) and run amdump in a cron every 15 min. Has someone done something like this? Any tips/help would be greatly appreciated. Now assuming my guess is correct how would amanda handle a full dump. I understand amanda will perform a full backup at least once every dumpcycle but my clients data is larger than 200GB and a full backup can take a few hours. What happens if a new amdump run (15 min later) starts before the full backup has finished? would this create corrupted backups? regards Horacio
